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This is 100% correct. After about 6 months in the tank, ethanol gas starts turning into sticky garbage that doesn't want to burn. I have a few classic cars that sit a lot. A couple times a year I drive an hour to my nearest ethanol-free gas station with a trunk load of gas cans. I'm sure it is incredibly dangerous, but I haven't had any fuel system problems since I started doing it.

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From a science perspective, why does ethanol become sticky? Whiskey doesn't get sticky when it gets old...

sorry, "sticky" is wrong in the context of ethanol gas in a modern-ish tank for a few months. However, when any gasoline is exposed to oxygen it forms solids called "gums." My 1971 car has a tank that's vented to the air so it did form a layer of sticky gunk after about 15 years of sitting. Ethanol absorbs water which makes it "not want to burn," corrosive to metal components and it will deteriorate plastics and gaskets. Modern fuel systems are designed with this in mind. But, my '79 Porsche 928 with its mechanical fuel injection (an analog computer that runs on fuel and air pressures) really hates it.

A relative collects Duesenbergs and he uses a fuel additive plus preservative since there is no ethanol-free gas where he lives.

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